#include <stdio.h>

#define STLEN 10

int main() {
    char words[STLEN];
    int i;

    puts("Enter strings (empty line to quit):");
    while (fgets(words, STLEN, stdin) != NULL && words[0] != '\n') {
        i = 0;
        while (words[i]!='\n' && words[i] !='\0')
            i++;
        if(words[i] == '\n')
            words[i] = '\0';
        else //如果word[i] == '\0'则执行这部分代码
            while (getchar() != '\n')
                continue;
        puts(words);
    }
    puts("Done.");

    return 0;
}
